Katherine Heigl

In an age in which, ahem, some of us woke up hungover on Monday, sleepily swiping through Instagram to figure out who had the best filtered pic of a barbecue or fireworks display, it's easy to lose sight of the meaning of Memorial Day.

Oftentimes, it takes a few episodes to get really invested in a show. But from its 2005 premiere date, Grey's Anatomy sucked us in. In honor of the show's 10-year anniversary (and Thursday's new episode!), let's look back at the best moments from the show's pilot for an epic game of remember when ...